Image processor, image reconstruction method, and radiation imaging apparatus

摘要

The image reconstruction method includes performing a forward projection of a first image of an object using a line integral-based value and a point spread function (PSF)-based value to acquire a forward projection value, and performing a back projection of raw image data using the forward projection value to acquire a second image of the object.

主权项

1. An image reconstruction method comprising:
acquiring a first image of an object by performing a back projection of a raw image data; performing a forward projection of the first image of the object to obtain a first projection data, by applying a line integral-based value to a first area of the first image; performing a forward projection of the first image of the object to obtain a second projection data, by applying a point spread function (PSF)-based value to a second area of the first image, wherein the second area is identical to the first area to which the line integral-based value is applied; combining the first projection data and the second projection data to acquire a forward projection data value; and performing the back projection of the raw image data using the forward projection value to acquire a second image of the object.